Change slideDelay value dynamically

I am using LayerSlider plugin in Wordpress. I want to get and set dynamically with Javascript the value of slideDelay ? Any idea how to achieve this?

See if this works:
http://docs.layerswp.com/forums/question/please-provide-an-example-of-how-to-change-slider-speed/

You might need to change the ID from the variable.

Best regards.